Navigation Links
Wakame waste
Date:5/1/2008

Bacteria that feed on seaweed could help in the disposal of pollutants in the world's oceans, according to a new study by researchers in China and Japan. The discovery is reported in the International Journal of Biotechnology, an Inderscience publication.

Shinichi Nagata of the Environmental Biochemistry Group, at Kobe University, Japan, working with colleagues at Shimane University and at Nankai University, China, explain that as marine pollution is on the increase novel approaches to removing toxic contaminants is becoming an increasingly pressing issue. They point out that various species of seaweed are able to extract toxic compounds from seawater and point to the brown seaweed, Undaria pinnatifida, known as wakame in Japan as having been the focus of research in this area for almost a decade.

Wakame can thrive evening the presence of carbon, ammonium, nitrate and phosphate in sea water that would otherwise be lifeless. However, there remains the problem of how to dispose of planted wakame, once it has feasted on organic and inorganic pollutants in seawater.

Organic pollutants are absorbed by cultured wakame and so cultivated wakame must be treated as a kind of toxic waste rather than a useful byproduct of marine bioremediation. The researchers point out that there may be a simple solution to the disposal problem. Natural wakame has been used as a fertilizer since ancient times, they explain, so the composting process could be an effective means of degrading wakame into a useful form and so recycling organic substances containing C, N and P from coastal waters.

The team has now found a highly efficient way to accelerate the composting process in the form of a novel marine bacterium, identified as a Halomonas species and given the label AW4.

Partial DNA analysis helped identify the active species isolated from the seaweeds in Awaji Island, Japan. The researchers explain that strain AW4 grows well even at high salt (sodium chloride) concentrations and can reduce the total organic components, including pollutant content, of the seaweed significantly within a week.


'/>"/>

Contact: Shinichi Nagata
nagata@maritime.kobe-u.ac.jp
Inderscience Publishers
Source:Eurekalert

Related biology news :

1. Dental chair a possible source of neurotoxic mercury waste
2. Key to using local resources for biomass may include waste
3. U of Minnesota researchers discover key for converting waste to electricity
4. Managing nuclear wastes for the millennia
5. Where does stored nuclear waste go?
6. Great potential to improve collection, recycling of Europes electronic waste, says UN report
7. Central targets may hinder wider waste management objectives
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/16/2017)... 16, 2017  Veratad Technologies, LLC ( www.veratad.com ), ... and identity verification solutions, announced today they will participate ... May 15 thru May 17, 2017, in ... Trade Center. Identity impacts the lives ... today,s quickly evolving digital world, defining identity is critical ...
(Date:4/19/2017)... York , April 19, 2017 ... as its vendor landscape is marked by the presence ... market is however held by five major players - ... Together these companies accounted for nearly 61% of the ... the leading companies in the global military biometrics market ...
(Date:4/13/2017)... 2017 According to a new market research report ... Identity Administration, and Authorization), Service, Authentication Type, Deployment Mode, Vertical, and Region ... expected to grow from USD 14.30 Billion in 2017 to USD 31.75 ... ... MarketsandMarkets Logo ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... Sciences today announced the three Winners and six Finalists of the 2017 Blavatnik ... annually by the Blavatnik Family Foundation and administered by the New York Academy ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... the pharmaceutical and biotechnology industries to improve patient outcomes and quality of life, ... in analytical testing are being attributed to new regulatory requirements for all new ...
(Date:10/11/2017)... ... October 11, 2017 , ... Personal eye wash is a basic first aid supply ... a time. So which eye do you rinse first if a dangerous substance enters both ... Duo Eye Wash with its unique dual eye piece. , “Whether its dirt and ...
(Date:10/11/2017)... HILLS, Calif. , Oct. 11, 2017  SkylineDx today ... (ICR) and University of Leeds ... risk-stratify patients with multiple myeloma (MM), in a multi-centric Phase ... University of Leeds is the sponsor ... and ICR will perform the testing services to include high-risk ...
Breaking Biology Technology: